Funny... I never thought about that either! Actually I'd never held a chicken in my life until I got them. When I was a kid I visited a cousin with chickens, twice, but I was only allowed to throw some scratch at them and that's about it.I didnt know how BIG chickens get. I had never had chickens before or been around them and you look at them in catalogs and on the internet but not until mine grew into full size hens was I thankful I built a much bigger coop then I needed. We went from aw they look so little in the this big coop to OMG we need more roost bars.